John A Hauck, Arthur L Olive: Rate adaptive cardiac rhythm management device control algorithm using trans-thoracic ventilation. Cardiac Pacemakers, Haugen and Nikolai, June 7, 1994: US05318597 (214 worldwide citation)

A rate adaptive cardiac rhythm management device in which the pacing rate is adjusted in accordance with changes in the patient's minute ventilation. An adaptive four-pole elliptic digital filter, preferably implemented in software, functions to attenuate any signal components due to cardiac activit ...

Arthur L Olive: Method and apparatus for classifying and treating cardiac arrhythmias based on atrial and ventricular activity. Cardiac Pacemakers, Fleit Jacobson Cohn Price Holman & Stern, April 28, 1992: US05107850 (211 worldwide citation)

A method for classifying cardiac arrhythmias by examining the atrial and ventricular activity of the heart. The atrial contraction rate and ventricular contraction rate are compared with each other when the ventricular rate exceeds a preset value. When the atrial rate exceeds the ventricular rate, t ...

Brian P Citak, Michael W Dooley, Arthur L Olive, Brian D Pederson, Renold J Russie, Rodney W Salo, William L Zimmer: Physiologic control of pacemaker rate using pre-ejection interval as the controlling parameter. Cardiac Pacemakers, Orrin M Haugen, Thomas J Nikolai, Frederick W Niebuhr, September 27, 1988: US04773401 (126 worldwide citation)

A multi-pole pacing/sensing lead is used to measure the instantaneous impedance in the right ventricle of a patient's heart. The resulting impedance waveform is signal processed to obtain a measure of the time interval beginning with the occurrence of a paced beat or a spontaneous QRS complex (systo ...

Arthur L Olive, Brian D Pederson, Rodney W Salo: Closed loop control of cardiac stimulator utilizing rate of change of impedance. Cardiac Pacemakers, Orrin M Haugen, Thomas J Nikolai, Frederick W Niebuhr, March 29, 1988: US04733667 (76 worldwide citation)

A cardiac pacer of the type having an implantable pulse generator and electrical leads deployed in the right ventricular chamber of the heart. The lead has a stimulating electrode as well as a plurality of sensing electrodes coupled to the pulse generator. Certain control circuitry associated with t ...

Arthur L Olive, Brian D Pederson, Veerichetty A Kadhiresan, Donald L Villalta: Self-calibration system for capture verification in pacing devices. Cardiac Pacemakers, Haugen and Nikolai P A, January 5, 1999: US05855594 (55 worldwide citation)

A cardiac pacing and sensing system includes a body implantable unit for generating tissue stimulation pulses and manipulating information based on sensed signals, and a catheter for transmitting pulses from the unit to a pacing electrode adjacent myocardial tissue. The unit incorporates circuitry f ...

Frank R Walmsley, Arthur L Olive, Jan Pieter Heemels: Dual chamber pacer having automatic PVARP. Cardiac Pacemakers, Haugen and Nikolai P A, October 7, 1997: US05674255 (44 worldwide citation)

A dual chamber pacemaker incorporating an adaptive PVARP for breaking pacemaker mediated tachycardia episodes and adjusting the PVARP interval in a way that reduces future incidences of PMT without extending PVARP beyond what is required.

Arthur L Olive, William C Lincoln: Holter function data encoder for implantable device. Cardiac Pacemakers, Fleit Jacobson Cohn Price Holman & Stern, October 1, 1991: US05052399 (43 worldwide citation)

A encoding/decoding algorithm for storing cardiac cycle length data in a memory of a body implantable device. The data encoding is based on a Holter function for sequentially storing in addresses in memory data representative of cardiac cycle length intervals and data representative of changes in th ...

Arthur L Olive, Rodney W Salo: Rate responsive cardiac pacemaker. Cardiac Pacemakers, Haugen and Nikolai, June 13, 1995: US05423870 (37 worldwide citation)

A cardiac pacemaker having an automatic pulse rate response gain factor responsive to at least one cardiac-related physiological characteristic of a patient. The pacemaker includes a rate controller that comprises a detector for detecting a plurality of individual measurements of at least one physio ...

Avram Scheiner, Qingsheng Zhu, Arthur L Olive, Don Villalta: Apparatus and method for outputting heart sounds. Cardiac Pacemakers, Schwegman Lundberg Woessner & Kluth P A, May 30, 2006: US07052466 (28 worldwide citation)

An apparatus for outputting heart sounds includes an implantable system and an external system. The implantable system includes a sensor for generating sensed signals representing detected heart sounds, an interface circuit and a control circuit for receiving the sensed signals, generating data repr ...

Veerichetty A Kadhiresan, Arthur L Olive, Bruce R Jones: Implantable device for monitoring aerobic capacity of patients. Cardiac Pacemakers, Nikolai Mersereau & Dietz P A, August 3, 1999: US05931858 (23 worldwide citation)

An implantable electronic circuit for monitoring a patient's aerobic capacity includes an accelerometer for detecting the onset and termination of a period of exercise and a means for measuring the patient's minute volume. By computing the time interval from the cessation of exercise to the point wh ...